These things can also be reduce by restricting newbie rank user from posting links. Don't know is it possible or not to implement this system at current bitcointalk SMF forum. A system like, only Jr. Members and above can post link or buy copper membership. Reporting those spam post and banning those spammers is the perfect solution for now.
If this is possible, it will also reduce newbie bounty hunter with multiple accounts. They won't be able to post the bounty reports(various platform link) without achieving any merits. As a result they will try to make good constructive post for getting merits. I know all newbies aren't spammer. But most of the time newbie user post inappropriate links.
I think it's better to just report it and let the moderators do their thing in deleting post like that. I understand that it is an easy way of stopping it if they would not let newbie accounts post links but It will still happen once they got a few merits so moderators will still do their job in it. They would try creating a few good posts and then shitpost from there, they are just delayed, and I'm sure some of those shitposters have accounts with sMerits here. Moderators are doing a good job handling it so I think we should stick to that.